I spoke with tower support about the pinion/ main gear not fully meshing on my new flybar version and was wondering if it's an issue with the flybarless version? I was told that I was the first to report the issue to them and they are going to try a fix and send me the parts. The motor needs to be raised or the bottom of the pinion machined shorter for full engagement. It's been on the threads but not reported to them. I noticed it too building mine and didn't want to fly it that way until I cured the problem.

I spoke with tower support about the pinion/ main gear not fully meshing on my new flybar version and was wondering if it's an issue with the flybarless version? I was told that I was the first to report the issue to them and they are going to try a fix and send me the parts. The motor needs to be raised or the bottom of the pinion machined shorter for full engagement. It's been on the threads but not reported to them. I noticed it too building mine and didn't want to fly it that way until I cured the problem.

When I bought the e620 (used) the seller included a motor plate used to lift the motor 2 or 3 mm's to help with that issue. I find that with the Scorpion motor and "Hard One" pinion it's not a problem as long as the pinion is mounted as far up as possible.

Not sure about the stock motor and pinion, are you able to turn the pinion "upside down"?

When I bought the e620 (used) the seller included a motor plate used to lift the motor 2 or 3 mm's to help with that issue. I find that with the Scorpion motor and "Hard One" pinion it's not a problem as long as the pinion is mounted as far up as possible.

Not sure about the stock motor and pinion, are you able to turn the pinion "upside down"?

No. Reversing the pinion doesn't work.I spoke with Tower and they saw the problem for the first time and have provided a fix. Here is the response I got today.

"The spacer I tested worked well and created the proper spacing between the
pinion and main gear. The screws that are included with the spacer work well,
and are the proper length for your motor. I have ordered the spacer for you.
You should receive it in 3-10 business days via UPS.

Great to hear they gave you good support. I'm so glad I got the thunder tiger bug. Good value helicopters from a company that's been around for along time and stll giving good support. The only thing I want from them now is a 50 size canopy that matches the new style like the e360 and e700

Great to hear they gave you good support. I'm so glad I got the thunder tiger bug. Good value helicopters from a company that's been around for along time and stll giving good support. The only thing I want from them now is a 50 size canopy that matches the new style like the e360 and e700

My first nitro in the modern era (not the 70's or 80's LOL) was the LMH 110 and then a Raptor v1. I really loved that raptor. So rugged and reliable. I was really sad when they got rid of the 30 sized machine. If they still made them I would eventually build another. They held the market forever.

The 550 FBL combo is really..really tempting with the $100 Tower code...
TT is on top of the value game for sure. It's only a matter of time for someone to make alternative canopy options for this model.